This computer supports a 64-bit processor operating mode, which is typical of many desktop computers that were released around the same time as it.
Lenovo Has Good Desktop Computer Reviews
Lenovo has good average ratings for its medium processor core computers as well as across its entire computer range.
3 PCI Express Slots Version
This computer supports a 3 PCI Express slots version, which is typical of many PCs that were released around the same time as it.
Gold EPEAT Compliance
This computer has a Gold EPEAT compliance, which is typical of many medium processor core computers that have been available for around the same time as it.
10/100/1000Base-T(X) Cabling Technology
This PC has a 10/100/1000Base-T(X) cabling technology, which is typical of many desktop computers of this spec and age.
L3 Processor Cache Level
This PC has a L3 processor cache level, which is typical of many comparable spec desktop computers that came out around the same time as it.
+5 More reasons for
Two PCI Express X1 (Gen 2.x) Slots
The ThinkCentre E73 SFF is a two PCI Express x1 (Gen 2.x) slot desktop computer. Most of the other PCs of this age and spec have between one and two PCI Express x1 (Gen 2.x) slots.
Very Fast Processor Front Side Bus
The average processor front side bus of PCs of a comparable spec and age to the ThinkCentre E73 SFF is 1,500MHz, and the processor front side buses range from 1,300MHz to 1,600MHz. When compared to other medium processor core computers that are a comparable age to the ThinkCentre E73 SFF that we have assessed, the ThinkCentre E73 SFF's processor front side bus of 1,600 megahertz is one of the fastest.
Two PCI Express X1 Slots
Most similar spec computers that have been on the market for around the same time as the ThinkCentre E73 SFF have between one and two PCI Express x1 slots, including the ThinkCentre E73 SFF which has two PCI Express x1 slots.
At only 160 millimeters, the ThinkCentre E73 SFF is quite narrow compared to most of the other desktop computers of this type and age. Across all the desktop computers that were launched around the same time as the ThinkCentre E73 SFF the widths range from 33mm to 510mm, and the average width is 190mm.
6 Reasons Against
Only Two USB 3.0 (3.1 Gen 1) Type-A Ports
The Lenovo ThinkCentre E73 SFF is a two USB 3.0 (3.1 Gen 1) Type-A port desktop computer.
Only HDD Storage Medium
The storage speed of this personal computer is HDD, which is typical of many medium processor core computers that are a similar age to it. A Hard Disk Drive (HDD) is the traditional storage method for computers. A HDD stores the information on magnetic disks. HDD drives are cheap, but they are slower than Flash and SSD bases storage systems.
There are a number of other HDD PCs currently available which you might also want to look at including cheaper computers such as the EliteDesk 800 G2 SFF ($903.14), or the 810-477na both from HP.
Desktop computers with a faster storage speed that might also be worth considering include the HP 800 G2 ($599.99) (SSD and higher rated) or the HP EliteDesk 800 G1 (SSD and cheaper).
Only 11 On-Board Graphics Adapter DirectX Version
This desktop computer supports a 11.1 on-board graphics adapter DirectX version, which is typical of many computers of a comparable type and age to it.
Only Has One Memory Slot
The ThinkCentre E73 SFF has a greater number of memory slots than most personal computers of this age and spec. The most frequently found memory slot is 4x DIMM, but this memory slot is not found on this Lenovo PC. The memory slots 2x DIMM are also found on this Lenovo computer.
+3 More reasons against
Only One 3.5" Bay
Most medium processor core computers that were launched around the same time as the ThinkCentre E73 SFF have between one and seven 3.5" bays, including the ThinkCentre E73 SFF which has one 3.5" bay.
Only One 5.25" Bay
Most medium processor core computers that have been on the market for around the same time as the ThinkCentre E73 SFF have between one and two 5.25" bays, including the ThinkCentre E73 SFF which has one 5.25" bay.
5 Other reasons to consider the Lenovo ThinkCentre E73 SFF
Released Over a Year Ago
This personal computer was released over a year ago.
Average Processor Clock Speed
At 3 gigahertz, the Lenovo ThinkCentre E73 SFF has a relatively average processor clock speed compared to most of the other medium processor core computers that have been on the market for around the same time as the ThinkCentre E73 SFF.
Computers with a faster processor clock speed that might also be worth considering include the 800 G2 ($1,249.00) (3.2GHz and cheaper), the 800 G2 ($1,249.00) (3.2GHz and cheaper), or the EliteDesk 800 G2 SFF ($799.99) (3.2GHz and cheaper) all from HP.
Average Total Storage Capacity
At 500 gigabytes, the ThinkCentre E73 SFF has a fairly typical total storage capacity compared to most of the other similar spec PCs that have been on the market for more than a year.
We compared all the other 500GB total storage capacity computers to this personal computer and we think cheaper desktop computers such as the HP EliteDesk 800 G1 is also worth considering.
Personal computers with a bigger total storage capacity that might also be worth looking at include the 800 G2 ($1,249.00) (1TB and cheaper), or the ProDesk 400 SFF (1TB and cheaper) both from HP or the Lenovo H50 (1TB and cheaper).
+3 Other reasons
Average Hard Drive Capacity
At 500 gigabytes, the ThinkCentre E73 SFF has a pretty standard hard drive capacity compared to most of the other comparable spec PCs that have been available for a similar time to the ThinkCentre E73 SFF.
It may also be worth considering one of the alternative 500GB hard drive capacity personal computers currently available including the HP EliteDesk 800 G1 which is cheaper.
If you would prefer a personal computer with a bigger hard drive capacity then you might also want to look at the 800 G2 ($1,249.00) (1TB and cheaper), or the 800 G2 ($1,249.00) (1TB and cheaper) both from HP or the Lenovo H50 (1TB and cheaper).
Average Internal Memory
The ThinkCentre E73 SFF has a fairly average internal memory (4 gigabytes) compared to most of the other computers of this spec and age.
We compared all the other 4GB memory computers to this PC and we think cheaper desktop computers such as the HP EliteDesk 800 G1 is also worth considering.
If this personal computer internal memory is too small for you then you might want to consider the 800 G2 ($1,249.00) (8GB and cheaper), the 800 G2 ($1,249.00) (8GB and cheaper), or the EliteDesk 800 G2 SFF ($799.99) (8GB and cheaper) all from HP.
Intel Core i5, Intel Core i5-4xxx
Processor Clock Speed
PCI Express Slots Version
System Bus Data Transfer Rate
Processor Front Side Bus
Processor Cache Level
Socket H3 (LGA 1150), LGA1150
Maximum Turbo Frequency
545, I5-4590, I5-4590S
Memory Channel Supported Processor
Max Memory Bandwidth Supported Processor
Memory Clock Speed Supported by Processor
Memory Type Supported Processor
Max Internal Memory Supported Processor
Conflict Free Processor
PCI Express Lane (maximum)
Processor Operating Mode
PCI Express Configuration
1x16, 1x1, 2x8, 1x8, 1x8+2x4, 2x4
Thermal Design Power (TDP)
Processor Cache Type
Smart Cache, L3
Memory Clock Speed
1 x 4
Maximum Internal Memory
Internal Memory Type
Total Storage Capacity
Hard Drive Capacity
Compatible Memory Card
MMC+, SD, SD, SDHC, SD, SDXC
Hard Drive Speed
Hard Drive Interface
Storage Drive Installed
Integrated Card Reader
Optical Drive Type
On-Board Graphics Adapter Model
Intel HD Graphics, Intel HD Graphics 4600
Open GL Graphics Adapter
On-Board Graphics Adapter ID
On-Board Graphics Adapter DirectX Version
On-Board Graphics Adapter Dynamic Frequency
On-Board Graphics Adapter Base Frequency
Displayssupported by On-Board Grap
Maximum On-Board Graphics Adapter Memory
Windows 7 Professional
Operating System Supplied
Windows 8.1 Pro
Recovery Operating System
Windows 8, Windows 8.1 Pro, Windows 8.1
Operating System Architecture
Ethernet LAN Data Rate
10, 10, 100, 10, 100, 1000
Ethernet LAN Connection
Ports & Interfaces
Headphone Out Port
Microphone in Port
Ethernet LAN (RJ-45) Port
VGA (D-Sub) Port
USB 3.0 Port
USB 2.0 Port
USB 3.0 (3.1 Gen 1) Type-A Port
PCI Express X16 (Gen 3.x) Slot
PCI Express X16 Slot
PCI Express X1 (Gen 2.x) Slot
PCI Express X1 Slot
Cable Lock Slot Type
Cable Lock Slot
Water Cooling System
Password Protection Level
HDD, Power on, Supervisor
Processor Special Features
Intel Anti-Theft Technology
Intell Identity Protection Technology
Intel My WiFi Technology
Intel Quick Sync Videotechnology
Intel Hyper-Threading Technology
Intel Smart Connect Technology
Intel Turbo Boost Technology
Intel Smart Response Technology
Intel VPro Technology
Intel Wireless Display (WiDi) Technology
Embedded Options Available
Enhanced Intel SpeedStep Technology
Intel Rapid Start Technology
Intel Small Business Advantage (SBA)
Intel Secure Key
Intel AES New Instructions
Intel Stable Image Platform Program (SIPP)
Intel FDI Technology
Intel Clear Video HD Technology
Thermal Monitoring Technology
Execute Disable Bit
Intel InTru 3D Technology
Intel Trusted Execution Technology
Intel VT-X With Extended Page Tables (EPT)
Intel Virtualization Technology (VT-X)
AVX, AVX 2.0, SSE, SSE4.1, SSE, SSE4.2
Intel Enhanced Halt State
Intel Small Business Advantage (SBA) Version
Intel Virtualization Technology for Directed I/O
Thermal Solution Specification
Processor Package Size
CPU Configuration (max)
Intel Identity Protection Technology Version
Intel Stable Image Platform Program (SIPP) Version
Graphics & IMC Lithography
Intel Smart Cache
Intel Secure Key Technology Version
Processor ARK ID
Typical Power Consumption
Power Supply Input Voltage
100 - 240
Power Supply Input Frequency
Weight & Dimensions
Relative Humidity Operating Range
20 - 80
Operating Temperature Range
10 - 35
Energy Star Certified
Number of Keyboard Keys
Intel Virtualization Technology
Maximum Internal Memory
Trusted Platform Module (TPM)
3840 x 2160
On-Board Graphics Adapter
Intel Visual Technology
Intel InTru 3D, Intel Clear Video HD, Intel Insider, Intel Quick Sync Video
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Total running cost over 5 years
Running costs for this PC have been estimated based on other similar PCs. If you know how much electricity and water the Lenovo ThinkCentre E73 SFFuses then please let us know by entering those figures in the boxes above.
Running this PC over 5 years will generate 0.26 tonnes of carbon dioxide (CO2).
To offset that much CO2 you would need to plant 7 tree seedlings and grow them for 10 years.
Previous and future annual running costs of the Lenovo ThinkCentre E73 SFF assuming future electricity price inflation of 0.0600% per year. Edit inflation assumptions